| 檐口形状对低矮房屋屋面风压分布的影响 |
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| 引用本文： | 李丽,高洪俊,周冲,冯海英.檐口形状对低矮房屋屋面风压分布的影响[J].四川建筑科学研究,2014(2):14-18. |
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| 作者姓名： | 李丽 高洪俊 周冲 冯海英 |
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| 作者单位： | 河北工程大学土木工程学院;中国建筑第四工程局有限公司; |
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| 基金项目： | 邯郸市科技计划项目(1221105084-3) |
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| 摘 要： | 基于计算流体动力学（CFD）和剪切应力输运（SST）k-ω湍流模型,对带不同尺寸檐口低矮房屋的屋盖风压进行了数值模拟计算.首先,对TTU建筑模型屋盖体型系数进行数值计算,并与其他文献的结果进行对比吻合较好,验证了本文计算方法和湍流模型参数选取的合理性.然后,基于此方法研究不同尺寸檐口对低矮房屋屋面体型系数分布情况,总结出檐口尺寸对屋盖体型系数变化的规律,优化其抗风性能,研究结果可为该类建筑的工程抗风设计提供参考.
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| 关 键 词： | 低矮房屋 体型系数 檐口 数值模拟 |
Effect of eave on roof pressure distribution on low-rise building |
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| LI Li,GAO Hongjun,ZHOU thong,FENG Haiying.Effect of eave on roof pressure distribution on low-rise building[J].Building Science Research of Sichuan,2014(2):14-18. |
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| Authors: | LI Li GAO Hongjun ZHOU thong FENG Haiying |
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| Affiliation: | 1. College of Civil Engineering,Hebei University of Engineering,Handan 056038,China; 2. China Construction Fourth Engineering Division Co. ,Ltd. ,Guangzhou 510665,China) |
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| Abstract: | Based on computational fluid dynamics and SST k - ω turbulence model, wind pressure on roof of low-rise building with different sizes of cave are carried out by numerical simulation. Firstly, shape coefficient on roof of TTU low-rise building model was investigated with numerical simulation technique. Compared with other literature data, reasonable agreement between the numerical results and the previous data confirms that our computationul resolution is reliable. Then shape coefficients on roof of low-rise building with different sizes of eaves are analyzed by using numerical simulation under different parameters. And the effects of the roof shape coefficient with respect to the size of cave are summarized, making it possible to do wind-resistant optimization by using eaves on roofs, which can be adopted as reference of wind-resistant design of this type of buildings. |
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| Keywords: | low-rise building shape coefficient eave numerical simulation |
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